package jisuan4h9t;

public class tv {
    public static void main(String[] args) {
        int x = 1;
        for (x = 1; x < 2000; x++) {
            if (5 * x - (500 * 4 - x) * 18 == 9931) {
                System.out.println("合格的电视机台数为：" + x);
            }

        }
    }
}
